Abstract
In a series of three experiments using rats, the chlorides of lithium, rubidium and caesium were compared with sodium chloride in respect of their effects on behavioural stereotypy. Two apparatuses were used, a modified hole-board and an open field. Caesium was found to increase the occurrence of environmentally-linked behaviour in both types of apparatus. Lithium had effects in the opposite direction. Rubidium had effects like caesium in the modified hole-board test, but like lithium in the open field. The findings are discussed in terms of possible effects on central information processing mechanisms.
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F. Neil Johnson
Joyce Laing works in the Department of Child and Family Psychiatry, Playfield House, Cupar, Fife, and is a Consultant Art Therapist to Psychiatric Hospitals and Prisons and Chairwoman of the Scottish Society of Art and Psychology.